I'm pretty sure that he is playing with her. I have seen her walk up to him and hit his tail, maybe for him to chase her. He also licks her head and lays by her. For the most part, they leave each other alone so I don't think she is stressed by him. Her favorite spot to lay right now is...
I do have another cat that chases her, but also lays with her. I don't know if he stresses her because she acts the same way she always does with him. He hasn't been chasing her as much lately. I was asking about confining her because of him, but she seems to deal with him well.
Thanks for the advise. Since we made the box for her to lay in, should we put it in the room where I would like her to give birth? And should I confine her to that room before she gives birth? (Of course with food, water, and a litter box)
Thank you for the replies! I feel almost as excited as when I had my own kids! I don't know how old she is, I think she is just over a year. My friend's brother asked if we wanted her and her sister because the owner could not care for them anymore, but I could only take one. He didn't know...